First install some requirements. (This might be more than actually needed)
yum -y groupinstall "X Window System"
yum -y groupinstall "Virtualization Client"
yum -y groupinstall "Virtualization"
yum -y groupinstall "Virtualization Platform"
yum -y groupinstall "Virtualization Tools"
yum -y groupinstall "Desktop"
yum -y install xorg-x11-fonts-100dpi
yum -y install xorg-x11-fonts-75dpi
yum -y install xorg-x11-fonts-Type1 xorg-x11-font-utils
yum -y install man
yum -y install emacs
As stated in the question we already have an LVM volume group
[root@server ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 3 0 wz--n- 8.18t 97.90g
First we create and define a libvirt storage pool from that LVM volume group
[root@server ~]# cat /tmp/foobar
<pool type='logical'>
<name>pool0</name>
<target>
<path>/dev/vg0</path>
</target>
</pool>
[root@server ~]# virsh pool-define /tmp/foobar
Pool pool0 defined from /tmp/foobar
[root@server ~]# virsh pool-start pool0
Pool pool0 started
[root@server ~]# virsh pool-autostart pool0
Pool pool0 marked as autostarted
[root@server ~]# virsh pool-list
Name State Autostart
-----------------------------------------
pool0 active yes
Per default libvirt already has a virtual network configured. It is named default. In this example we will redefine that virtual network so that we can use it for PXE install.
[root@server ~]# virsh net-list
Name State Autostart
-----------------------------------------
default active yes
[root@server ~]# emacs /tmp/default.xml
[root@server ~]# cat /tmp/default.xml
<network>
<name>default</name>
<forward mode='nat'/>
<bridge name='virbr0' stp='on' delay='0' />
<ip address='10.0.0.1' netmask='255.255.0.0'>
<tftp root='/var/lib/dnsmasq/tftpboot' />
<dhcp>
<range start='10.0.0.2' end='10.0.255.255' />
<host mac='02:54:00:13:be:e4' name='virt1.example.com' ip='10.0.0.2' />
<host mac='02:52:2c:a3:11:42' name='virt2.example.com' ip='10.0.0.3' />
<bootp file='/pxelinux.0' />
</dhcp>
</ip>
</network>
The MAC addresses, 02:54:00:13:be:e4 and 02:52:2c:a3:11:42 seen above are just some random MAC addresses. (see the serverfault question: how to generate a random MAC address from the Linux command line)
[root@server ~]# virsh net-destroy default
Network default destroyed
[root@server ~]# virsh net-undefine default
Network default has been undefined
[root@server ~]# virsh net-define /tmp/default.xml
Network default defined from /tmp/default.xml
[root@server ~]# virsh net-start default
Network default started
[root@server ~]# virsh net-autostart default
Network default marked as autostarted
[root@server ~]# mkdir /var/lib/dnsmasq/tftpboot
[root@server ~]# ls -lZd /var/lib/dnsmasq/tftpboot
drwxr-xr-x. root root unconfined_u:object_r:dnsmasq_lease_t:s0 /var/lib/dnsmasq/tftpboot
[root@server ~]# yum install syslinux
[root@server ~]# rpm -ql syslinux | grep pxelinux.0
/usr/share/syslinux/gpxelinux.0
/usr/share/syslinux/pxelinux.0
[root@server ~]# cp /usr/share/syslinux/pxelinux.0 /var/lib/dnsmasq/tftpboot/
[root@server ~]# cd /var/lib/dnsmasq/tftpboot/
[root@server tftpboot]# wget -O centos-6-vmlinuz.x86_64 http://ftp.funet.fi/pub/Linux/mirrors/centos/6.0/os/x86_64/images/pxeboot/vmlinuz
[root@server tftpboot]# wget -O centos-6-initrd.img.x86_64 http://ftp.funet.fi/pub/Linux/mirrors/centos/6.0/os/x86_64/images/pxeboot/initrd.img
[root@server tftpboot]# mkdir /var/lib/dnsmasq/tftpboot/pxelinux.cfg
[root@server tftpboot]# cd /var/lib/dnsmasq/tftpboot/pxelinux.cfg
The MAC address 02:54:00:13:be:e4 used above needs the configuration filename 01-02-54-00-13-be-e4. In other words prepend 01- and convert : into -.
[root@server pxelinux.cfg]# emacs 01-02-54-00-13-be-e4
[root@server pxelinux.cfg]# cat 01-02-54-00-13-be-e4
default local
prompt 1
timeout 50
label local
localboot 0
label install
kernel /centos-6-vmlinuz.x86_64
append initrd=/centos-6-initrd.img.x86_64 ks=http://www.example.com/kickstart-files/virt1.example.com.txt device=eth0 ramdisk_size=9216 lang= devfs=nomount
[root@server pxelinux.cfg]# cd
Here we assumed that the kickstart file for virt1.example.com can be downloaded from http://www.example.com/kickstart-files/virt1.example.com.txt
Now we run service libvirtd reload. This seems to be required for the dnsmasq tftpserver to run properly.
[root@server ~]# service libvirtd reload
Reloading libvirtd configuration: [ OK ]
Now run virt-install to create the KVM guest virt1.example.com with 20 Gb disk space.
[root@server ~]# virt-install --debug --hvm --vnc --name virt1.example.com --os-type=linux --os-variant=rhel6 --pxe --network network=default,model=e1000,mac=02:54:00:13:be:e4 --disk pool=pool0,size=20 --ram 1024 --vcpus=1
Now the graphical program virt-viewer will pop up an X-window. When you see "boot: " during the boot sequence, type install.
A note about the virt-install command line options:
Using model=virtio didn't work for me, but luckily model=e1000 worked just fine.
Best Answer
Unfortunately, it is not possible to share a Linux filesystem directly to a Windows Guest. The I/O access is completely different and such a feature would require a complete translation from an NTFS emulation to a disk (D:\ ...) then to an XFS/EXT4/... mapped filesystem. They are not feature agnostic.
The shared folder is intended for mapping a Linux filesystem to a Linux guest through the guest agent.